Tension device



W. T. MUNSON TENSION DEVICE Dec. 25, 1934.

Filed July 15, 1953 2 Sheets-Sheet l Z ZZZarcZ ZZfzawon Dec. 25, 1934. w. T. MUNSON 1,985,665

TENSION DEVICE 7 Filed July 15, 1953 2 sheets-sheet 2 73M MM 6% M30 Patented Dec. 25, 1934 IENsIQN DEVICE I W lem J 3 .M 'nsphifb m t i k u .ass nor to n W t 2* Business as present lz invention-grelates "to a device and wherein ,n the cleaning; and tension action maybe regulatedaccording to thedifierent types offlmachines and the nature of'the thread which is wound. l v Y n "The: invention also aims, togprovide an improved type of thread tension deviceand cleaner having a thread guide embodying a shiftablepr adjustable notch member 'havinga plurality :of notches thereinadaptedsto bebrought one atja time: into line with the threadi'guideias the sure faces or walls of thenotchesbecome wornso that by slight adjustment'the device, maynpresenta renewed threadnotch to the guide; 1; A

A further. object'of the present; invention is to provide an improved construction forqremoving initial aocumulationsiof -slugs andzother ad hering particles and-portions 'iadhering to the thread and which wouldotherwisepass through the device and be wound upon thetbobbin', cone or the like. w 1 With the foregoing andotherwobjects in view, the invention willbe more fullysde'scribed hereinafter; and will be more-particularly. pointed out in the claims appended hereto.

In the drawings, wherein like symbols refer to like or corresponding parts throughout the several views, l V t I Figure 1V is a side elevation partlyin section of a portion of a'spoolxwinder showingonein stallation of thevcombinedtension device and thread cleaner :oftthespresent invention. I Figure 2 is 5. detail perspective view of the thread cleaner adjusted for mounting upon the 50 transverse bar of thexspooling machine.

Figure3 is a top plan View of thentensionipor tion or-head of the device with the-rotarysweight removed and. showing the path ofa thread in the device. i Figure [is a longitudinalvertical-section taken throughthe-s'ame onthe line 4-4-of Figure 3. Figure 5 is aside elevation of -the tensionihead obverse to the sl'l'ow'ing' in Figure "4. n

111i gure 6 is? an outer end viewuthereofzshowing the recessOrJeading-in QuideZfQr the thread. I:

fromnthendepressi m a;

-v-tFi r fl p showin ;thetensiomewa p ba h fi ur -L use ra men ar se tio v ew 9 i fie ent typ o aqsnqp windin imachin rha zz a opposit end,elevatio ;.therq th gqm in dste sion evic au T hr a cleane 6 adiusted thereto. n

vflieu eifl atop lan viewc i the deviqen ih he qtar iwe ht remov d, endes iust dasz iqw i rEi ur fi- V l 1 atEi llIfi 1Q al uei usl nal-sectipn taken thr ugh Referring now to the drawings to the arran em nt show c y w 9F i I whi h ov r ie t e sock t, Qneni i q os th int n d indin h e l ta e bar, \thetswq; toren t-qth 'suit p s nse :T e ill e p a e 2 1 8 Tprjovig f i" t b t end with a flaring recess {25 the walls \offwhi'oh are ad p te toengagetheithreadflm and direct it int .h bat ee rwz t h Sfi Q QS lengthwise of 1 the head 20 and substantially ine m q a etha qs h' m M ntral portionpf the head 2011s amtm? n ing" up i-n i 'b hea rovided with a concentriqdepression28 about h ba $6 1 6 e-2' e d r n Fi u e it;-W :b ng tf l h ti h e-QP i Z' i S P lat a wi h res ectm e o r 161 0 that ith 1 8 the drawn from the throatfarossi the remote s ,d; the pin 2'1 and inwardly; rossthe head 20. The-thread 1'8'thus' bridges the' depres sion 2$ and-the latter serves to oatchfa yQparu s QR-EH18}. :22 12.10:

isndi posed nenea h the hread U as opening 29 and fall out of the device. The pin" 27 is removably seated at its lower end in the head so that the pin 27 may be lifted, at least to a small extent, upwardly from the head, and

the depression 28 is provided in an adjustable disc 31 which is fixed to the pin 2'7 and which is countersunk in the upper faceof the head 20.

The marginal edge portion ofthe disc 31, as shown in Figure 4, projects into the upper portion of the throat or groove 26 and the disc 31 is provided at suitably spaced apart points with transverse grooves 32 which correspond to the inner endof the-throat 26 so as to provide upper rubbing edges for the groove 26 over which the thread 18 may pass. The disc 31 may be slightly raised out of the head 20 and turned to interchange the grooves 32 relative to the throat 26 so that the rubbing edges, provided by the grooves 32, may be renewed from time totime. The head 20 is provided at one side of the disc 31 with a key or retaining pin 33 fixed upon the head and adapted toreceive an adjacent notch 32 for holding the disc 31 from turning out of I its adjusted position.

Of course the pin 33 is located on the head relatively to the throat 26 and to the number and spacing apart 'of the peripheral groovesor recesses 32 in the disc 31. It will also be noted that the disc 31 is provided with triangular slots 3 34, one for each notch 32 and disposed in substantialradial register therewith at the opposite-side of the pin 27 so that each notch 32,

when adjusted into register with the throat 26 will have'a corresponding opening 34 in'r'egister with the opening 29 of the head. Thus, the rubbing edges and surfaces are all disposed upon the disc 31 and may be interchanged fromtime to time as they wear.

The innerend of the head 20 is provided with a depending end wall 35 which carries a connecting screw 36 having its head engaging the" inner side of a comb 37 and which has its threaded portion projecting outwardly through the wall for'receiving a retaining nut 38. The comb'3'7 is vertically slotted to receive the bolt or screw 36' and is provided with a set ofcomb teeth 39 which are inclined upwardly and outwardly toward the throat 26 of the head. The comb 3'1 is adapted to be adjusted into position immediately beneath'the thread 18 as it passes in wardly from the upper surface of the head-20. The retaining nut 38 is'preferably of a type which may be adjusted only by use of a special tool, and for this purpose the outer end of the nut 38 is preferably tapered and provided with an axial non-circular bore 40 for receiving a rectangular or other suitably shaped shank for interlocking engagement with the nut 38 to turn it. Thus, whenthe comb 37 is adjusted such adjustment cannot be disturbed except by a duly authorized person having the specially con- 'structed tool.

The head 20 is provided at its inner end, and atone side of the wall 35, with aseat or shoulder 41 which extends vertically and which serves to support and hold in proper relation to the head the interchangeable sections thereof, as shown in Figures 3' and 9.

In the adjustment shown in Figure l, the head 20 is provided with a tension equalizing bar .in interlocking engagement thereagainst by a screw 44 or the like. The shoulder 41, as shown in Figure 3, is stepped sufliciently to hold the shank 43 from turning and to thus support the tension equalizing arm'42 horizontally across the inner end of the head.

As shown in Figures 1 and 4, the thread 18 passes across the upper face of the head 20 and inwardly'beneath the bar 42 and thence upwardly over the transverse bar 45 of the winding machine so that the thread is maintained substantially in the plane of the head 20v at all positions of the bar '45 during the rise and'fall thereof in winding the spool 11.

The transverse bar 45 is utilized, in the arrangement shown'in Figure 1, for carrying the thread cleaning blades. blades 46 'aremounted in a bracket frame 47 and the frame 4'7 has a lower inner part providing a shank corresponding to the shank 43 of Figure 7, so that the bracket 47 may be interchanged with the shank 43 when it is desired to substitute the blade cleaner for the tension equalizing bar 42.

When it is desired, however, to dispose the cleaning blades 46' adjacent to the spool 11 or other device upon which the thread 18 is wound, a clamp bracket 48 is employed preferably made in two sections, the body portion of which is provided with the shoulder 41' adapted to receive the lower shank portion of the holder 47 for the blades 46. In this instance the thread 18 is carried upwardly from the bar 42 over the transverse bar 45 and thence inwardly through the blades 46 of the cleaner to the spool 11. Any loosening of fibers or foreign mattercarried by the thread 18 incident to the rise and fall of the transverse bar 45 is thus caught in the final cleaning action as the thread passes through the blades46, the blades being disposed at the inner side of the bar 45, as shown in Figure 1.

As shown in Figures 3 and 4 particularly, the

pin or spindle 27 has freely rotatable thereon a gravity tension drum or disc 49 hollow in its upper side and carrying a desired number of weights 50 for urging the drum 49 downwardly against the thread 18 as the latter passes from thethroat 26 and across the side of the pin 27. The purpose of said gravity tension drum is for enclosing the tension weights 50, thus'preventing the accidental insertion of the thread between the tension weights instead of under tension drum or disc 49. Said tension drum by its enclosing the weights also prevents accumulation of waste and foreign matter between the weights which would eliminate frequent cleaning of said foreign matter which .would otherwise accumulate between the weights. Another feature of tension drum or disc 49 is to facilitate automatic entering of the thread in its proper place under the tension drum which would be brought about by the rotation of the drum as a result of the friction of the thread against its side or top edge in case the thread were not guided by the hand of the operator in its proper place under the tensionadrum. The disc 49 is suitably weighted to impart the desired tension to the thread, and the thread is initially cleaned by the drawing and rolling action to which the thread is subjected as it passes about one side of the pin-27 and beneath the disc 49. The foreign matter In this instance the.

sion bar 42 and thence upwardly over the transverse bar 45, through the blades 46 and finally to the spool 11.

In the adjustment shown in Figures 8 to 11, the clamp bracket 48 is dispensed with and the frame or bracket 47 of the blade cleaner is merely substituted against the shoulder 41 for the ten-.

sion equalizing bar 42. The bar 42 is dispensed with in this adjustment so that the blades 46 serve not only as the final cleaner for the thread 18, but also as the equalizing device for holding the thread 18 in the plane of the head 20 during the operation of the machine.

The head 20 with the gravity disc 49 provides a tension device for the thread, the openings 34 and 29 respectively in the shiftable disc 31 and head 20 provide an outlet for the depression 28 to free slugs and other accumulations free from the thread 18 during the rubbing action of the tension device. The shoulder or edge 30 of the disc slot 34 for the most part removes the accumulations from the thread 18 and the accumulations fall out through the opening 29 and the registering disc opening 34.

The comb 39 serves as a detector for any slugs or the like still carried by the thread 18 after it passes through the tension device. The final cleaning means, in the form of the blades 46 follows the comb and may be spaced from the head 20 on another part of the machine as shown in Figure 1, or may be mounted directly on the inner end of the head 20 as a part thereof as shown in Figure 8.

The sequence of these devices thus described and shown insures not only the proper tension on the thread 18 but also properly removes objectional slugs and other encumberances on and cleans the thread with the desired adjustment of both the cleaner and the tension device. This is an essential combination and sequence as the tension device partially removes and loosens the slugs and the comb and cleaner are brought immediately into action to benefit by the loosening action of the tension device. The tension equalizing bar 42 and the clamp bracket 48 are removable so that for certain conditions the blade carrier frame 47 may be interchanged with the tension equalizing bar 42. i

It is obvious that variouschanges and modifications may be made in the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims.

What is claimed is:

1. In a device of the character described, a head having a thread receiving guide slot in one end and having a pin socket ofiset laterally from the slot and a counter-sink about the socket and a through opening at one side in the countersink, a pin in said socket, a disc carried by the pinand seated in the counter-sink and having its marginal edge projecting into the inner end of said guide slot and having spaced grooves in said marginal edge adapted to register one at a time with the slot by adjustment of the disc in the counter-sink, a key on the head projecting into the counter-sink and engaging a second groove in the disc to hold the latter when adjusted, said disc also having an opening therethrough for each groove adapted to register with the opening through the head when the respective groove is in register with the guide slot, the disc further having a depression about the pin leading into said openings of the disc, and a gravity disc rotatably mounted on the pin above the first disc to bear against a thread passing between the discs.

2. In a thread tension device, a head having a guide slot therein to receive a thread for passage over the head, a shiftable member carried by the head and having thread bearing notches therein adapted to be brought into register one at a time with the guide slot by the adjustment of said member, a pin rising from the member for receiving the thread thereacross, and a tension element mounted on the pin for engaging the thread, said member having a depression adjacent the pin and the member and the head having a discharge opening leading from the depression, whereby accumulations released from the thread by the tension element may be deposited in the depression and discharged through said opening.

3. In a thread tension device, a head having a guide slot to loosely receive a thread, and a pair of members, one of which is movable, carried by the head and disposed in face abutting relation and adapted to receive the thread therebetween, one of said members having a discharge opening therethrough over which the thread is adapted to pass whereby to release accumulations from the thread, said one member also having a marginal slot to receive the thread. i

4. In a thread tension device, a supporting means, a round plate carried by said supporting means and capable of rotation with respect to said supporting means, means for normally holding said plate against rotation, said plate having circumferentially spaced peripheral notches, and

a plurality of. spaced openings inwardly of the peripheral edge thereof, and a friction member supported for movement relative to said plate, a selected notch in said plate receiving the thread therein and said openings being so arranged that an opening will underlie the thread when the plate is turned to receive the thread in a particular notch thereof, the opening underlying the thread constituting a discharge opening to discharge the accumulations from the thread.

5. In a thread tension device, a head having a guide slot therein to receive a thread for passage over the head, a shiftable member carriedby the head and having, thread bearing notches therein adapted to be brought into reg ister one at a time with the guide slot by the adjustment ofsaid member, said member and the head having a discharge opening whereby accumulations released from the thread may be deposited and discharged through said opening, and a tension element supported for movement relative to the member.

WILLARD T. MUNSON. 

